a(n) is the least A for which there exists B with 0 < B < A so that A^(2^k) + B^(2^k) is prime for k = 0, 1, ..., n.

A343121

a(n) is the least A for which there exists B with 0 < B < A so that A^(2^k) + B^(2^k) is prime for k = 0, 1, ..., n.

Terms

    a(0) =2a(1) =2a(2) =2a(3) =2a(4) =2a(5) =2669a(6) =34559a(7) =26507494a(8) =3242781025

External references